Let me sum it up entirely:
Dash:Evan Duffield who is Dash's developer, released Dash before it's intended release date and started mining it then. This means Dash also has a premine as well. During the first 2 days of Dash's existence, there was 500 coins per block that was being mined, and from that, 2million+ coins were mined. After 2million+ coins were mined in the first 2 days, the 500 coins per block output was reduced/sliced and diced to under 100, instantly making those instamined/premined coins worth more. Then to make things worse, the max coin supply was cut from avg. 80million to 20million. However, the likely scam/fraud didn't finish then, as all of that was done while mining was restricted to Linux-only users(90%+ of all people use Windows), and for a period of time, the only person able to mine Dash was it's developer, Evan Duffield, as the public miner wasn't working.
What to gain from that? Well for starters, Dash started off as a likely undeniable scam. It's Objective, as the history of this is recorded in the blockchain. None of this is personal, nor opinionated, it is all Fact.
To make things even worse however, there's still an address that owns 11% of all Dash currently in existence, with inputs dating back to the instamine: https://chainz.cryptoid.info/dash/wallet.dws?559582.htm. So besides the fact that close to 40% of all Dash in existence currently were instamined in 2 days, there's also a guy that owns 11% of all dash. So practically 50% of all Dash *coins* are/were owned by the instaminers and 1 person, that's an absolute despicable distribution.Monero:Thankful-for-Today released Monero as a fork from Bytecoin. Bytecoin had a deoptimized miner and so this miner was transferred onto Monero. There is no report of Thankful-for-Today taking advantage of that at all, as the github has been untouched, and Thankful-for-Today has nothing to do with the current 7 member Monero dev team. Some people that mined at this time made their own miners since they had the skill for it, and they also released a public article and presented the fact that they sold all the coins that they mined during this period.
What to gain from that? Well, Monero's distribution is superior than most other cryptocurrencies, as the coins mined early on in this period were all sold to an array of new buyers, negating any effects of the deoptimized miner. Also, Monero's beginnings is Subjective, as there's no clear evidence that Thankful-for-Today even knew the miner was deoptimized in the first place when he forked it from Bytecoin.
Conclusion: Everything said against Monero's Launch is Subjective and Opinionated, just like saying "Satoshi worked for the NSA" is subjective and an opinion. However, everything said against Dash's Launch is Objective as the history is recorded in the blockchain, Dash did have an extremely controversial instamine/premine and that's a fact.
If any trolls argue against either/or, please show them this post.